New Delhi (CNN) -- India's top court Thursday sentenced a leading Bollywood star, Sanjay Dutt, to five years in prison in connection with bomb attacks in Mumbai in 1993. The supreme court in New Delhi upheld his conviction on charges of possessing illegal weapons tied to the bombings, which killed 257 people and wounded hundreds more. He has four weeks to surrender, said his lawyer, Satish Maneshinde. In 2006, Dutt was convicted of illegally possessing an AK-56 rifle and a 9 mm pistol under India's Arms Act. He was cleared of a more serious accusation of conspiracy in the attacks. Dutt was later sentenced to six years in prison.

And it is unfortunate that this has happened,"
Satish Maneshinde said after Thursday's verdict.